Airborne VNIR and SWIR Imaging Spectrometer and its Multi-sensor Remote Sensing Applications

An Airborne VNIR and SWIR Imaging Spectrometer (AVSIS) system is fully integrated with grating-based VNIR and SWIR imaging spectrographs, a customized CCD camera and an InGaAs camera, a precision GPS/IMU setup, a specially- configured instrument PC, and a dedicated AVSIS operation autonomous software package. AVSIS is a fast hyperspectral imaging system capable of imaging simultaneously 129 spectral bands across a 1,392-pixel swathwidth with 1-meter resolution in a 445-900 nm spectral range, along with 228 additional synchronized SWIR bands in a 900-1700 nm range with a 320 coarse pixel swath, which matches the maximum acrosstrack viewing angle that the VNIR part covers. All of these bands are digitized at 12 bits each with the same pushbroom scanning rate up to 60 scanlines/sec. AVSIS is interoperational with a multispectral framing camera system for simultaneous stereo pairs. Its initial hyperspectral/multispectral/stereo synthetic remote sensing applications have been discussed; and mapping- quality data samples are presented.